And able to test all halogen gases, including chlorine, fluorine, bromine. Such as cfc R12, R11, R500, R503, HCFCs R22, R123, R124, R502, hfc R134a, R404a, R125, etc. Audible and Visual Alarm: The detector features both an audible and visual alarm to alert you when a leak is detected, making it easy to locate and repair the leak.
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